diff options
| author | cinap_lenrek <cinap_lenrek@felloff.net> | 2022-02-23 18:00:34 +0000 |
|---|---|---|
| committer | cinap_lenrek <cinap_lenrek@felloff.net> | 2022-02-23 18:00:34 +0000 |
| commit | bea20cd152066c1deee6f1acbf68cf1fcc569927 (patch) | |
| tree | 99b07c05405f7cb8860fbb50a767e0fef805ea05 /sys/src/cmd/nusb | |
| parent | 9cd55a085de274abb937a2d586b3d0a4e4d0e1b1 (diff) | |
nusb/lib: provide a setalt() function to set the interface to its altsetting
Diffstat (limited to 'sys/src/cmd/nusb')
| -rw-r--r-- | sys/src/cmd/nusb/lib/dev.c | 10 | ||||
| -rw-r--r-- | sys/src/cmd/nusb/lib/usb.h | 1 |
2 files changed, 11 insertions, 0 deletions
diff --git a/sys/src/cmd/nusb/lib/dev.c b/sys/src/cmd/nusb/lib/dev.c index f692b33fa..ccd75bfdb 100644 --- a/sys/src/cmd/nusb/lib/dev.c +++ b/sys/src/cmd/nusb/lib/dev.c @@ -482,6 +482,16 @@ unstall(Dev *dev, Dev *ep, int dir) return 0; } +int +setalt(Dev *d, Iface *ifc) +{ + if(usbcmd(d, Rh2d|Rstd|Riface, Rsetiface, ifc->alt, ifc->id, nil, 0) < 0){ + werrstr("setalt: %s: %r", d->dir); + return -1; + } + return 0; +} + /* * To be sure it uses a single write. */ diff --git a/sys/src/cmd/nusb/lib/usb.h b/sys/src/cmd/nusb/lib/usb.h index 3ed953d5b..c34df7082 100644 --- a/sys/src/cmd/nusb/lib/usb.h +++ b/sys/src/cmd/nusb/lib/usb.h @@ -353,5 +353,6 @@ int parsedev(Dev *xd, uchar *b, int n); int unstall(Dev *dev, Dev *ep, int dir); int usbcmd(Dev *d, int type, int req, int value, int index, uchar *data, int count); Dev* getdev(char *devid); +int setalt(Dev *d, Iface *ifc); extern int usbdebug; /* more messages for bigger values */ |